<!DOCTYPE html>
<!--

// Copyright 2011 Traceur Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

-->
<html>
<head>
<title></title>
<script src="../../../third_party/closure-library/closure/goog/base.js"></script>
<script>
// NOTE: base.js and all goog.require statements must be in JS script blocks
// NOTE: because they use document.write to add new script tags in place
goog.require('goog.testing.jsunit');
</script>
<script src="../../../bin/traceur.js"></script>
</head>
<body>
<script>
function testLineNumbers() {

  var src = 'function foo() { return 5; }\nvar \nf\n=\n5\n;\n';

  var filename = 'checkLineNumbers.js';
  var sourceFile = new traceur.syntax.SourceFile(name, src);
  var lineNumberTable = sourceFile.lineNumberTable;

  var lastLine = lineNumberTable.getLine(sourceFile.contents.length - 1);
  assertEquals(lastLine, 5);

  var resource = '';
  for (var line = 0; line <= lastLine; line++) {
    var offset = lineNumberTable.offsetOfLine(line);
    var column = lineNumberTable.getColumn(offset);
    var lineOut = lineNumberTable.getLine(offset);
    assertEquals(lineOut, line);
    assertEquals(column, 0);  // check non-zero value below
    var nextOffset = lineNumberTable.offsetOfLine(line + 1);
    var maxOffset = sourceFile.contents.length;
    nextOffset = nextOffset > maxOffset ? maxOffset : nextOffset;
    resource += sourceFile.contents.substring(offset, nextOffset);
  }

  assertEquals(src, resource);

  // verify one non-zero column
  assertEquals(lineNumberTable.getColumn(31), 2);

  var outOfBounds = lineNumberTable.getLine(-640);
  assertEquals(outOfBounds, 0);
  var inBounds = lineNumberTable.getLine(6);
  assertEquals(inBounds, 0);
}
</script>
</body>
</html>
